• Josh Poimboeuf's avatar
    x86/kconfig: Consolidate unwinders into multiple choice selection · 81d38719
    Josh Poimboeuf authored
    There are three mutually exclusive unwinders.  Make that more obvious by
    combining them into a multiple-choice selection:
    
      CONFIG_FRAME_POINTER_UNWINDER
      CONFIG_ORC_UNWINDER
      CONFIG_GUESS_UNWINDER (if CONFIG_EXPERT=y)
    
    Frame pointers are still the default (for now).
    
    The old CONFIG_FRAME_POINTER option is still used in some
    arch-independent places, so keep it around, but make it
    invisible to the user on x86 - it's now selected by
    CONFIG_FRAME_POINTER_UNWINDER=y.
    Suggested-by: default avatarIngo Molnar <mingo@kernel.org>
    Signed-off-by: default avatarJosh Poimboeuf <jpoimboe@redhat.com>
    Cc: Andy Lutomirski <luto@kernel.org>
    Cc: Borislav Petkov <bp@alien8.de>
    Cc: Brian Gerst <brgerst@gmail.com>
    Cc: Denys Vlasenko <dvlasenk@redhat.com>
    Cc: H. Peter Anvin <hpa@zytor.com>
    Cc: Jiri Slaby <jslaby@suse.cz>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Mike Galbraith <efault@gmx.de>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: live-patching@vger.kernel.org
    Link: http://lkml.kernel.org/r/20170725135424.zukjmgpz3plf5pmt@trebleSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
    81d38719
Kconfig.debug 12.6 KB